期刊
APPLIED PHYSICS LETTERS
卷 96, 期 7, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3319502
关键词
focused ion beam technology; light interferometry; magnetisation; magnetometers; Permalloy; silicon compounds
资金
- NSERC
- iCORE
- CIFAR
- NINT
- CRC
- AIF
- Integrated Nanosystems Research Facility supported through CFI
- nanoAlberta
Magnetic torque is used to actuate nanotorsional resonators, which are fabricated by focused-ion-beam milling of permalloy coated silicon nitride membranes. Optical interferometry is used to measure the mechanical response of two torsion modes at resonance, which is proportional to the magnetization vector of the nanomagnetic volume. By varying the bias magnetic field, the magnetic behavior can be measured with excellent sensitivity (approximate to 10(8)mu(B)) for single magnetic elements.
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